- Aela the Huntress
- Kodlak Whitemane
- Njada Stonearm
- Vignar Gray-Mane
 Main Quests
- Take Up Arms - Prove your worth to join the Companions.
- Proving Honor - Retrieve a Fragment of Wuuthrad.
- The Silver Hand - Join The Circle and clear Gallows Rock of Silver Hand.
- Blood's Honor - Kill and retrieve the head of a Glenmoril Witch.
- Purity of Revenge - Retrieve the Fragments of Wuuthrad and wipe out the Silver Hand.
- Glory of the Dead - Cure Kodlak's spirit.
 Radiant Quests
Available after finishing 'Take Up Arms'
Available after finishing 'The Silver Hand'
Available after finishing 'Glory of the Dead'
Available after finishing both 'Glory of the Dead' and 'A Blade in the Dark'
Achievements that can be achieved by running quests for the Companions
- Take Up Arms - Join the Companions
- Blood Oath - Become a member of the Circle
- Glory of the Dead - Complete Glory of the Dead